linux-kernel - Re: [PATCH V2] ima: do not copy measurement list to kdump kernel

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Message-ID: <47edc9708d0ca75489d59ef4b9b6ef2f5de21fe9.camel@linux.ibm.com>
Date: Wed, 14 May 2025 08:40:39 -0400
From: Mimi Zohar <zohar@...ux.ibm.com>
To: steven chen <chenste@...ux.microsoft.com>, stefanb@...ux.ibm.com,
        roberto.sassu@...weicloud.com, roberto.sassu@...wei.com,
        eric.snowberg@...cle.com, ebiederm@...ssion.com, paul@...l-moore.com,
        code@...icks.com, bauermann@...abnow.com,
        linux-integrity@...r.kernel.org, kexec@...ts.infradead.org,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: madvenka@...ux.microsoft.com, nramas@...ux.microsoft.com,
        James.Bottomley@...senPartnership.com, bhe@...hat.com
Subject: Re: [PATCH V2] ima: do not copy measurement list to kdump kernel

On Tue, 2025-05-13 at 07:31 -0700, steven chen wrote:
> From: Steven Chen <chenste@...ux.microsoft.com>
> 
> Kdump kernel doesn't need IMA to do integrity measurement.
> Hence the measurement list in 1st kernel doesn't need to be copied to
> kdump kernel.
> 
> Here skip allocating buffer for measurement list copying if loading
> kdump kernel. Then there won't be the later handling related to
> ima_kexec_buffer.
> 
> Signed-off-by: Steven Chen <chenste@...ux.microsoft.com>
> Tested-by: Baoquan He <bhe@...hat.com>
> Acked-by: Baoquan He <bhe@...hat.com>

Thanks, Boaquan, Steven.

This patch is now queued in next-integrity and next-integrity-testing.

Mimi